Some contractors use a rough base rate of $1.50 or $2.00 per square foot, some multiply 4 to 6 times the paint cost, some estimate the time the job will take and add it to an estimate of materials—and some may simply offer the lowest price to outbid the competition.
(Height x Width) × Price per square inch
This formula is used for flat, two-dimensional work, like paintings, prints and drawings. It's also pretty straight forward: it takes the surface area of a work and multiplies by a rate of your choosing.
How do you calculate the price per square foot for house painting? To find out your price per square foot on a project, divide your total cost estimate by the square footage of their home. Your cost estimate should include all expenses that go into the job, including materials, labor, and overhead costs.
“Valuing an artwork is a combination of many factors: institutional recognition, market demand, career stage of the artist, condition, authenticity, medium, et cetera.” Exterior view of HdM Gallery in Beijing. Courtesy of HdM Gallery.
Professional house painters typically charge an average of $3 to $6 per square foot, $20 to $50 per hour, or $200 to $500 per day. The average cost to paint a 10-foot by 12-foot bedroom is $391 for just the walls or $815 for a full paint job that includes ceiling, walls, baseboards, and trim.
What do most painters charge per hour? you can expect to pay anywhere from $20 to $50 per hour for a professional paint job. The more experienced and skilled your painter, the higher their hourly rate will be–and there's no denying that more complex projects take longer to complete.
Multiply the painting's width by its length to arrive at the total size, in square inches. Then multiply that number by a set dollar amount that's appropriate for your reputation. I currently use $6 per square inch for oil paintings. Then calculate your cost of canvas and framing, and then double that number.
You might pay R60 to R200+ per square metre. This depends on paint quality and prep work needed. A standard room typically costs between R1,000 and R6,000 to paint. Labour costs usually range from R450 to R900 per hour.
As others have noted, the best way to place a value on art is to contact a reputable and experienced appraiser familiar with the genre and medium your piece is in (Oil painting, signed etching, watercolor, renaissance master, impressionist, pop art, etc.)
“Painting is just another way of keeping a diary.” – Pablo Picasso. “Life beats down and crushes the soul and art reminds you that you have one.” – Stella Adler.
Bidding on a paint job begins with inspecting the site to measure the walls and find any damage or other problem areas. Use the square footage to find the amount of paint and other materials you'll need. Estimate the labor costs of the job and add your overhead and profit margin to the final estimate.
Some contractors use a rough base rate of $1.50 or $2.00 per square foot, some multiply 4 to 6 times the paint cost, some estimate the time the job will take and add it to an estimate of materials—and some may simply offer the lowest price to outbid the competition.
Most professional painters charge $1.50-$3.50sq/ft for painting interior spaces. You can expect that price to go higher when you factor in specific add-ons like trim or walls. Painting your home is a very labor-intensive task that requires experience, knowledge, and skill.
Per room or by square foot is the most common way for painting contractors to estimate paint jobs. It may be easier to track labor and materials by estimating your cost on a room-to-room basis, especially if you're using various colors. Labor may also be easier to calculate.
The monetary value of a painting is generally tied to the reputation of the artist who created it, because this work will generate a higher demand in the market. Equally when an artist dies, their work will often encounter an increase in price as their works are now in permanently scarce supply.
First, consult price guides to determine current sale and auction prices. Some price guides are available on the Internet, but most come in books or offline formats. Specialized university or art museum libraries and larger public libraries often carry these guides.
Step 2: Calculate windows and doors area i.e 20*2+15*2=70 sqaure feet where windows is 15 feet wide and doors are 20 feet. Step 3 Now substract unpainted area i.e 420-70=350 square feet. Step 4: Divide that number by 350 i.e 350/350=1 gallon of paint needed to paint interiors od room.